Draft-gear yoke.



C. C. KINSMAN.

DRAFT GEAR YOKE.

APPLICATIoN min JAN.21.1914.

gf'fz, Patented De@.21,1915.

UNITED sra- CHARLES C. KINSIVIAN, OF CHICAGO, ILLINQIS, ASSIGNOR TO UNIVERSAL DRAFT ATTACHMENT CO., 0F CHICAGO, ILLINOIS, A CORPORATION' 0F ILLINOIS.

DRAFT-GEAR Yoan.

Application filed January 2l, 1914.

T0 all vwhom it may concern Be it known that I, CHARLES C. KINSMAN, a citizen of the United States, and resident of Chicago, county et' Cook. and State ol Illinois, have invented certain new and useful Improvements in Draft-Gear vYokesot which the following is a specification. and which are illustrated in the accon'ipanying drawings, forming a part thereof.

The invention relates to railway draft gears and more particularly to the part of such gears known as the yoke. It has heretofore been proposed to construct these `vokes of two separable members with one ot the members taking the term ot a socket t'or rcceiving the draw bar and the othermemher made in the form ot a'strap for encircling the cushioning elements. Yokes constructed in'this way have been termed composite yokes to distinguish them from the integral form. The composite yoke is desirable vior the reasons that the assembling of the parts is facilitated and the use of different material, as cast metal for the socket member and wrought metal for the strap is permitted. As heretofore constructed. however, dilliculty has been experienced in providing a means: of connecting the socket member and strap which will give to the parts ot the yoke the required strength tor withstanding the shocks to which they may be subjected in service. The present invention accordingly contemplates a 'l'orm ot' composite'r'yoke having the socket. member and strap connected in an improved inanner.

The object of the invention is to provide a draft gear yoke which may be readily constructed and which will be durable `and ellicient in use.

In the accompanying drawings, Figure is a plan View of the yoke; Fig. 2 is a side elevation ot the same, and Fig. 3 is a detail perspective viewillustrating the end portions of the strap.

In the yoke shown in the drawings, the socket and strap members are generally designated by the reference numerals 1 0 and il, respectively. The socket member i0 prele ably comprises the two side walls l2 and 'l and the top and bottom walls Vll and l5. The side walls12 and. lil have the usual hori zontally disposed registering key receiving slots 1G. In order that these slots may be of the required length, the side ealls i2 and Specification of Letters Patent.

Iiatenteol Dec. 2, i915.

serial no. 213,410.

13 are desirably made longer than the top and bottom walls ll and. 15, as by being provided with torwardly extended portions. designated 1T and 1S, respectively. To per-l mit lateral swaying' of the draw bar (not shown), the forwardly extended portions 1T and 18 ot the side walls 1Q and 123 preferably iiare outwardly as appears in Fig. 1.

lhe body portion of the strap ll preferably has the usual U-shaped torni for en circling the cushioning elements oi the draft gear. In carrying out the present invention the two end portions of the strap are prei"- erably widened and thickened to provide a T-hcad, as 19, Q0 'and a rearwardly facing shoulder Q1, Q2 at each end of the strap. It now the parts ot' the yoke are assembled by drawing the strap ll rearwardly through the socket l0, the laterally projecting arms of each of the T-heads 1D, 2O of the strap will ride upon the adjacent edges, as Q3, ot the extended portion 1'?, 18, olf the side walls 12 and 13 ot the socket member l0. and the rearwardly facing shoulders 2l will engage the forward edge of the top or bottom wall 14, l5, as a stop. A lirm bearing between the ends ol the yoke and the socket is there- -by provided `for the transmission et' pulling strains and at the same time a support is provided between the'ends ot the strap to resist such strains as tend to turn the ends of the strap inwardly. Furthermore, relative movelfnent between the socket member 10 and strap 11, as when the gear is subjected to bulling strains, is accompanied by a, sliding of the arms ot' the T-heads l), 20 upon the edges, as lil of' the side walls and i3. The strap Il with its T-heads I9 and 2O and rearwardly Vlacing shoulders El is of a form which may be conveniently manufactured 'from wrought metal and when assembled with the socket men'iber l0 a yoke of unusual strength is provided.

I claimH i. In a draft gear yoke, in combination, a draw bar socket having top, bottonrand side walls and open ends, the side walls being extended 'forwardly beyond the top and bottom walls, and a strap, the ends olz which extend through the soel-;et and each of which is widened to form a l--hcad with the arms of the T-head riding upon the adjacent edges oll the .said extended portions ol' the side walls ol' he socket,

2. In a dral't gear yoke, in combination, a

llO

draw har socket having top; bottoni and side walls and open ends, the side walls being extended forwardly beyond the top and bottom walls, and a strap, the ends of which extend through the socket and each o which is widened and thickened to forni a T-head and a rearwardly facing` transverse shoulder with the arms of the T-head riding upon the adjaeent edges of the said extended portions of the side walls of the socket and the said transverse shoulders abutting against the forward edges of' the top and bottom Walls of the socket.

3. En a draft gear yoke,in combination, a

tl-shaped loop having lateral projections at the ends of its side members, and a drawbar engaging member having upwardly facing shoulders and forwardly facing shoulders for engaging such projections.

et. In a draft gear yoke, in combination, a drawbar socket having top, bottom and side Walls, the side Walls extending forward of the top and bottom walls and being` of less vertical width. than thedistance therebetween, a U-shaped strap having its ends extended through the socket and being provided with lateral. projections bearing, le spectively, against the top and bottom edges of its side weils and against the forward edges of its top and bottom Walls.

CHARLES C. KINSMAN, Witnesses:

E. M. KLAToimm O. M. VVERMICH. 

